PAROECANTHINI GOROCHOV, 1986

Campos, Lucas Denadai De & Desutter-Grandcolas, Laure, 2020, The Paroecanthini crickets (Orthoptera: Grylloidea: Gryllidae: Oecanthinae) from French Guiana, Zoosystema 42 (20), pp. 355-398 : 393-394

KEY TO GUIANESE PAROECANTHINI GOROCHOV, 1986 KEY ADAPTED FROM CAMPOS ET AL. (2020) FOR GUIANESE SPECIES.

1. Body not robust, slightly flattened; FWs covering the whole abdomen; male FW stridulatory apparatus complete, PCu vein bisinuous; auditory tympana present on both sides of TI, rarely absent on inner side; male genital sclerites generally regressed ....................................................................... Paroecanthina Gorochov, 1986 (2)

— Body robust or not, not flatenned; apterous, brachypterous, or with developed FWs; males with developed FWs with longitudinal veins, only with PCu curved, or with developed stridulatory apparatus; when curved, PCu vein not bisinuous; auditory tympana absent, present only on inner side of TI, or present only on outer side of TI; male genital sclerites developed .................................................................. Tafaliscina Desutter, 1988 (3)

2. TI inflated; outer tympanum covered by a sclerotized tab; FIII as long as TIII; TIII subapical spurs 5/4; female ovipositor apex margins smooth, ovipositor tip pointed ........................ Angustitrella vicina ( Chopard, 1912)

— TI not inflated; outer tympanum exposed; FIII twice longer than TIII; TIII subapical spurs 4/3; female ovipositor apex margins serrulated, ovipositor tip slightly concave ............................... Perutrella septentrionalis n. sp.

3. Small size; FWs absent .......................................................... Cylindrogryllus (Apterotrypa) Gorochov, 2017 (4)

— Medium to large size; FWs present ............................................................................................................... 5

4. Ocelli present; TIII without a dark brown band on proximal region; male last abdominal tergite constricted medially similar to supra anal plate; male genitalia LLophi inner margin bearing strong bristles; EndSc elongate; copulatory papilla dorsal and ventral side almost same-sized...................... C. (Apterotrypa) mitarakensis n. sp.

— Ocelli absent; TIII with a dark brown band well discernible on proximal region; male last abdominal tergite not modified; male genitalia LLophi inner margin without bristles; EndSc short; copulatory papilla dorsal side three times longer than ventral side .............................................................. C. (Apterotrypa) guyanensis n. sp.

5. FWs with stridulatory apparatus; male supra anal plate bearing a median spine; male genitalia LLophi apex bifid ...................................................................... Adenophallusia de Mello & de Camargo e Mello, 1996 (6)

— FWs only with longitudinal veins, sometimes with PCu curved; male supra anal plate without spine; male genitalia LLophi apex not divided ................................................................................................................. 7

6. Male FWs covering the supra anal plate; harp crossed by three diagonal veins; median spine of supra anal plate with base enlarged; both lobes of LLophi of male genitalia with pointed apex; Female FWs covering abdomen but not supra anal plate; copulatory papilla not cylindrical, posterior margin with a median rounded projection ................................................................................................................. Adenophallusia legendrei n. sp.

— Male FWs not covering the supra anal plate; harp crossed by four diagonal veins; median spine of supra anal plate with base not enlarged; inner lobe of LLophi of male genitalia with pointed apex; Female FWs not covering the last three abdominal tergites; copulatory papilla cylindrical, posterior margin without a median rounded projection. ..................................................................................................... Adenophallusia aratayensis n. sp.

7. Ocelli generally absent, reduced when present; PCu not curved, without teeth ventrally; metanotum with median region elevated; absence of small dorsal protuberances on fore and mid tibiae; male genitalia only with LLophi. Female apex of ovipositor pointed, smooth laterally; copulatory papilla triangular in dorsal and ventral views ............................................................................................................ Brazitrypa Gorochov, 2011 (8)

— Ocelli present, well developed; PCu vein curved, sometimes with teeth ventrally; metanotum without projections, or with two lateral projections; presence of small dorsal protuberances on fore and mid tibiae, sometimes absent; male genitalia with MLophi and LLophi. Female apex of ovipositor truncated or slightly acuminated, serrulated laterally; copulatory papilla cylindrical .................................................... Tafalisca Walker, 1869 (9)

8. DD reddish brown; hindleg light brown; copulatory papilla curved downwards in lateral view; male genitalia LLophi hook-shaped ................................................................................................ Brazitrypa cornuta n. sp.

— DD medium to dark brown; FIII anterior region light brown, distal portion dark brown, TIII dark brown; copulatory papilla straight in lateral view. Male unknown:. Brazitrypa maroniensis ( Chopard, 1930) n. comb.

9. General coloration light brown, DD light brown, caudal margin dark brown, with two median maculae dropshaped horizontally dark brown; FWs veins medium to dark brown; PCu curved reaching middle region of FW; male genitalia LLophi curved upwards in lateral view..... Tafalisca elongata elongata ( Chopard, 1912) n. comb.

— General coloration reddish brown, DD reddish brown, without maculae; FWs veins light brown; PCu curved almost reaching inner margin of FW; male genitalia LLophi straight or slightly curved upwards in lateral view ...................................................................................................................................................... 10

10. Flagellum with sparse dark brown antennomeres; FWs light brown with dark brown spots; claws yellow; metanotum with two lateral projections; male genitalia MLophi very short ................................ Tafalisca hugeli n. sp.

— Flagellum without dark brown antennomeres; FWs medium brown without dark brown spots; claws medium to dark brown; metanotum without projections; male genitalia MLophi elongate, almost half size of LLophi ..... 11

11. Flagellum reddish brown; TIII subapical spurs dark brown; PCu vein with stridulatory teeth ventrally; male genitalia LLophi outer margin with bristles; PsP anterior margin larger than posterior in ventral view; R distal half twice wider than anterior half in lateral view ....... Tafalisca vestigialis Campos, Souza-Dias & Nihei, 2020

— Flagellum yellowish; TIII subapical spurs apex yellow; PCu vein without stridulatory teeth ventrally; male genitalia LLophi outer margin without bristles; PsP anterior margin thinner than posterior in ventral view; R distal and anterior half almost same width in lateral view ........................................................... Tafalisca ansoi n. sp.